Feed-water purifier



R. JOY;

FEED WATER EURIEIEE.

Patented Sept. 29, 1896'.

Iggzgfor (No Model.)

UN-rrnn STATES PATENT Fincae ROBERT JOY, OF OSVEGO, NEW YORK.

FEED-WATER PURIFIER.

SPECIFICATION forming part of Letters Patent No. 568,536, dated September 29, 1896.

Application filed October 9, 1895. Serial No. 565,176. (No model.)

To cir/ZZ whom t mag/concern.-

Be it known that I, ROBERT J OY, a citizen of the United States, residing at Oswego, in the county of Oswego and State of New York, have invented a new and useful Feed-Water Purifier, of which the following is a specification.

This invention relates to an improvement in feed-water purifiers, and has for its object to provide a simple and efficient device which may be readily applied to a boiler of any type in common use and wherein provision is made for heating the feed-water in its passage through the purifier and drawing off the sediment therefrom and finally removing the sediment through the medium of a blow-off pipe.

XVith the above object in view the invention consists in certain novel features and details of construction and arrangement of parts, as hereinafter fully described, illustrated in the drawing, and finally embodied in the claim.

In the accompanying drawing is represented a verticalsectional vi ew through the improved purifier and a sufticient portion of ahorizon tal boiler to show the application thereto.

Similar numerals of reference designate corresponding parts in the drawing.

Referring to the accompanying drawing, 1 designates a hollow cylindrical body which is vertically disposed and provided at its top edge with a surrounding annular flange 2, by means of which a removable top 3, similarly iianged, may be bolted thereto. The flanged top 3 is centrally apertured and threaded to receive the feed-water-supply pipe 4, while the main cylindrical body is provided with a central aperture in its base, also threaded to receive the upper end of a pipe 5, through which the feedwater passes from the purifier into the steam-boiler, (indicated at Q.)

The base of the cylindrical body 1, adjacent to the centrally-located aperture therein, is provided with an integral upwardly-extending annular flange 7 which is internally threaded to receive the upper end of the discharge-pipe 5, and thus formsa surrounding annular pocket S, in which the sediment or precipitation from the feed-water accumulates. This annular pocket, formed by the purifying-chamber and establishes the water-` level therein, while the lower end of said pipe, after passing through the shell of the boiler, reaches to a point in proximal relation to the water-level of said boiler, said vpipe being further provided with a steam-inlet nipple l0, arranged in proximity to the shell of the boiler and communicating with the steamspace therein, so as to admit of the inflow of the steam at all times to the pipe 5 and purifying-chamber.

Located directly beneath the feed-watersupply pipe 4 and suitably supported within the purifying-chamber is a conical detlector or spreader 11, the major diameter of which is somewhat less than the internal diameter of the body 1. Beneath the cone 11 is arranged a hollow truncated cone 12, the same being inverted or disposed with its expanded end uppermost. The diameter of the expanded end of the vinverted truncated cone exceeds that of the conical delector 11, and such end of the truncated cone extends upward sufficiently to lie in substantially the same horizontal pla-ne with the base of the cone 11 and concentric therewith. The feedwater entering through the pipe 4 falls upon the vertex of the conical delector 1l, and is spread radially into a thin annular sheet, which finds its way into the inverted cone 12. The water descends and passes out through the contracted end of the cone 12 and falls upon a second conical deliector or spreader,

.13, interposed between the contracted end of the cone 12 and the upper end of the pipe 5. By means of this last cone the feed-water is again spread radially into a thin circular sheet and finally falls into the wateralready contained in the base of the purifying-chamber, but in such manner as' to be incapable ot' immediately entering the discharge-pipe 5 before the sediment has been precipitated therefrom.

By means of the construction above de- IOO scribed it will be seen that after the feed-Water enters the heating and purifying chamber it is spread into thin sheets and subjected to the action of the steam which passes from the boiler upward through the pipe 5 and into said chamber. The Water is thus brought to a temperature conducive to the precipitation therefrom of all mineral, earthy, or other matter, after which it enters and commingles with the Water already contained in the base of the chamber, thereby displacing a portion of the contents thereof and causing the Water to iioW over and into the top of the dischargepipe 5 and thence into the boiler G. The steam from the boiler passes upward through the center of the pipe 5, while the purified feed- Watcr descends through said pipe in the form of an annular sheet, clinging closely to the inner wall of said pipe. Should the bottom of the pipe 5 become submerged at any time by the rising of the Water in the boiler above the normal, the steam may obtain access to the pipe 5 and thence to the purifying-chamber by means of the nipple l0, above referred to. lVhenever desired, the blow-off pipe 9 may be opened so as to ai'ord a vent thereto, and the Water and sediment Within the purifying-chamber discharged in a manner Well understood by those conversant with the art. A very simple and efficient feed-Water heater and puriiier is thus obtained, and at the same time one which may be easily and quickly applied to any boiler in common use.

Changes in the form, proportion, and minor details of construction may be resorted to Without departing from the spirit or sacrificing any of the advantages of this invention.

Having described the invention, what is claimed as new is- In a feed-tratenpurifier, the combination with the hollow cylindrical body having a substantially central aperture in its bottom end, a su pply-pipe communicating with said charnber at the top, and a series of reversely-disposed conical deflectors arranged between the supply-pipe and the opening in the bottom, of a discharge-pipe extending through the opening in the bottom, an inclined annular sediment-pocket surrounding said dischargepipe and inclining from one side of the chamber to the other, and a blow-oft pipe arranged at one side of the chamber and at the lowest point of the sediment-pocket, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

ROBERT JOY. lVitnesses:

HENRY WILKINSON, GEO. M. BENNETT. 

